import { defineConfig } from 'astro/config';

// Static output (zero runtime) — the whole point of the git-based approach.
export default defineConfig({
  output: 'static',
  // Placeholder domain until the real one exists — only used to build absolute
  // URLs (canonical, og:*, RSS, sitemap). Swap once the portal has a home.
  site: 'https://portal.ctao.org',
  // Built-in prefetch on every internal link (no per-link attributes needed).
  // Default 'hover' strategy: near-instant navigation without the bandwidth
  // cost of 'viewport' on a 24-card grid; auto-falls back to 'tap' on
  // data-saver / slow connections (Astro handles that).
  prefetch: { prefetchAll: true },
  server: { port: 4321, host: true },
  vite: {
    server: {
      // Vite blocks unknown Host headers by default; the demo is viewed through an
      // ephemeral cloudflared quick tunnel, so allow any *.trycloudflare.com host.
      allowedHosts: ['.trycloudflare.com'],
      // Same-origin path for the Sveltia/Decap local backend proxy (default port
      // moved to 8082 to avoid colliding with Metro on 8081). Proxying it here
      // means the CMS admin talks to one origin, so editing also works through the
      // cloudflared tunnel from the phone.
      proxy: {
        '/api/v1': { target: 'http://localhost:8082', changeOrigin: true },
      },
    },
  },
});